Elevator Call Advance Data via Acceleration and Magnetometer Sensors
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Solution Overview
Problem
Existing elevator systems face challenges during modernization, as old position detection systems often fail to meet modern communication standards, being either mechanical or analogue, and may not provide reliable digital signal outputs, hindering the generation of accurate call advance data for new elevator controls.
Innovation Solution
Mounting an acceleration sensor and/or magnetometer on the elevator car to provide current acceleration and magnetic flux data, which are then calculated into car position and velocity data, enabling the generation of call advance data through integrated calculating units and wireless communication with the elevator control, independent of the old position detection system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an old mechanical or analogue position detection system is used during elevator modernization, then the existing system can be maintained without extensive wiring changes, but the system fails to meet modern communication standards and cannot provide reliable digital signal output for call advance data generation
Solution Approach 1:
The patent replaces the old mechanical or analogue position detection system with a modern sensor-based system using acceleration sensors and/or magnetometers. These sensors provide digital signals that meet current communication standards, enabling reliable call advance data generation without requiring extensive wiring changes to the existing elevator infrastructure.
Solution Approach 2:
The patent introduces intermediate calculating units that process sensor data (acceleration and magnetic flux) to generate position and velocity information. These calculating units act as mediators between the simple sensors and the elevator control system, converting raw sensor signals into meaningful call advance data that the control system can use for sophisticated call allocation.
2Loss of information
If a new position detection system with digital output is installed to meet modern communication standards, then call advance data can be generated accurately, but extensive wiring and system changes are required during modernization
Solution Approach 1:
The patent employs sensors and calculating units that can be integrated into existing elevator cars without requiring fundamental system changes. The acceleration sensors and magnetometers are universal components that can be mounted on any elevator car, and the calculating units can process data from either sensor type, providing flexibility and ease of installation during modernization while delivering accurate digital position and velocity data.
3Productivity
If sophisticated call allocation algorithms are implemented in the new elevator control, then call advance data is needed for optimal performance, but the old position detection system cannot provide the required data format
Solution Approach 1:
The patent replaces the incompatible old position detection system with modern digital sensors (acceleration sensors and/or magnetometers) that output data in formats compatible with current communication standards. This substitution enables the new elevator control to receive accurate position and velocity data, which is essential for implementing sophisticated call allocation algorithms that improve call handling efficiency and overall system productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution allows for the generation of call advance data in a digital format, facilitating sophisticated call allocation in modernized elevator systems without the need for extensive wiring or reliance on outdated position detection systems, ensuring accurate and efficient elevator operation.
Implementation Method 1
an acceleration sensor provides an output signal with current acceleration data of the elevator car
Implementation Method 2
a magnetometer provides information about the magnetic flux at the current position of the elevator car in the shaft
Data Source
AI summary
A system for the generation of call advance data for an elevator control, which system is going to be installed in an elevator car moving in an elevator shaft and includes at least one acceleration sensor outputting current acceleration data and/or magnetometer outputting a magnetic flux signal which includes current magnetic flux data at the current position of the elevator car, which acceleration sensor and/or magnetometer is mounted in connection with the elevator car; a velocity calculating unit which calculates from the current acceleration/magnetic flux data current car velocity data; a position calculating unit which calculates from the current acceleration/magnetic flux data and/or from the current car velocity data current car position data; and a call advance processing unit which calculates from the current car velocity data and the current car position data call advance data which designates the time until which the car is able to stop at the next approaching floor in travelling direction, which call advance data is transmitted to a call allocation unit of an elevator control. Call advance data is provided in an easy manner without using existing car position detection devices of an existing elevator to be modernized.